to be honest i dont know, ive never owned one of these cars before. The guy I bought it from claims its all original but I cant be sure. Everything else to do with this car is amazing so I wouldnt be surprised if it was original.

It looks 95% original to me. It even has the original carb and air cleaner. The door handles look good. The bumpers are 28 but the engine is a 29. There were not that many Canadian Plymouths built. Maybe it was made in early 29? The pad around the steering column is original. I am glad you are taking lots of pictures.